HC-WB-45 wristband has a slot in the back of wristband. It can be put into a RFID chip or other things. Compare with other traditional wristbands, the whole body design looks like a snake, the head is on the side but not on the middle.
HC-WB-42 is a disposable paper material wristband. The head is not touch human skin, so that it solve the problem of the effecting from human body to UHF chip.
HC-WB-33 is a wristband that made of ABS material. The strip use a elastic chain which is suitable for different wrist size. This mode is widely used in gym, swimming pool, sauna house and bathroom.
